Automatic puffing unit for toys



W. R. SMITH AUTOMATIC PUF'FINC UNI'l FOR TOYS Sept. 16, 1952 3 Sheets-Sheet 1 Filed June 20, 1946 /v .NRM n .f

lNvENoR William @.5 BY /ri I ATTORNEY was ' Filed June 2o, 194e Sept. 16, 1952 w. R. sMiTH 2,610,437

AUTOMATIC PUFFING UNIT FOR TOYS y 3 Sheets-Sheet 2 INVENTOR v be 'I'/ ATTORNEY Sepbl, 1952 W R, sMlTH 2,610,437

AUTOMATIC PUFF'ING UNIT FOR TOYS Filed June 2o, 1946 :s sheets-sheet s l INVENTOR @L3M 35mm v v ATTORNEY lat'enteci Sept. 1'6, 195:2

UNITE PM ENT ole-Fics v "ac'iolisv AUTbM-ATIePUFFiNG UNIT111cm;TOYS. Wiliam smifli; .Piiiiaaelphia Pg, ,neigen it" The A', o; "Gilbetcqihpansa ,Newnavei-l, cmf., ar'corporatwn ofMary'xane Y A rmpi@ummm-f Juieezc,f1f94a-seriaiNo: cgsef This Iinvention 4rela-tes` to and for the purpose set forth 'inf'rnyg twogcor-4 pending ap-plications;, Serial No. 409;()56led August 30, 1941ggnow Patent Number 461,664- and SerialNo. 457,547,;1ed$eptember '7, 1942iv andnow abandoned; such apparatns'lbeing particularly designed to -be contained restricted apparatus: of thetype spaces vsuch' as 'a'hollow miniature'vtoy, building--' or"carried in hollowminiature rol-ling stock :of a toy electric'trainfor causingfthe -emission of visi'- ble-smoke-l'ike or steameim'itating fumes from :the building. orfrom-theflocomotive of -a totT trainin puffs' of realistic appearanceand1in'` vconjunction with sound effects eiectively Iimitating the pung l noises of a steam engine. Certain tfeatures "ofthe invention *disclosed but not claimed hereinare claimed in my Avcopencling-V application, Serial VNo.` 691-4843'1ed August'20,-1946.

TheY present` improvements' are directed -par- Y apparatus," and byA modification the formenn -A-related objectfis s tuturallyfto organize"ani'4 electrically :powered soundand filme:producerv on all common suo-'assembly b'aseJso thatr itfisf'inei stallable and operates as'aunity inf a hollow,` toy 'or in1anysingle piece'fof toy 'rolling stockfand can be removed therefrom as Na unit 'without operative-ly` disa'ssociating itsr Working` parts.

A iur-therobject is` to unitiz'e'v alsoundprof-'f ducer-'and a smokek generator inve;'stilo-frameY comprising a single integral castingtlfat may'be. compartmented" to take the pl'ace'ofv separated" and; spaced hollow structures which heretofore in this' type of apparatus have been `connecteiifioyA uid conduit p for; 'giving' iiuid` communication therebetween'-p. By the presentin'iprovenfients thev useof -conduit-or tubing'ior"cooperatively `relating 50 a Vpuiiing sounder and V la smoke generatorgis woide i.v A l I l Another object is to simplify fandrenderfmore.

eifective--` the smoke :v generator--f of 'my 'aforesaid copending.:applications arrows. Y

Fig. '1 is a perspective view of the apertured sounding plate removed from the assemblage of Figs. 4 and 5.

Fig. 8 is an enlargement of a portion of Fig. 6 showing more clearly in detail the anchorage for the heating wire and electrical connections thereto.

Fig. 9 is a perspective View showing partly in section one of the wheeled trucks on which the tender rides.

Fig. 10 is a diagram of electrical connections.

Fig. 11 shows a modified arrangement of the filling inlet leading to the liquid magazine.

Fig. 12 is a plan view of a portion of the puffing and sounder unit drawn on a larger scale than in Fig. 4 with the superstructure partially broken away to expose a manually operable circuit controller and a still further modified form of filler inlet for the liquid magazine.

Fig. 13 is a detailed view of the circuit controller taken in section on divergent planes I3-I3 in Fig. 12 looking in the direction of the arrows.

Fig. 14 shows the unit of Fig. 12 installed in the tender of Fig. 2 and in the process of being recharged with a supply of fume producing liquid and vshows part of the structure sectioned on plane I4--I4 in Fig. 12.

Fig. 15 shows about twice actual size the compressible relling capsule of Fig. 14 in the sealed form in which it is merchandised before being usedl as in Fig. 14;

Fig. 16 shows a still further modification of the filler inlet and fume outlet incorporated in atoy locomotive wherein the liquid ller inlet projects froml the locomotive like a smoke stack and is made tol emit the smoke-like fumes that are derived from the liquid.

'The toy locomotive and tender of Fig. 1 is shown in 3%; actual size of the so-called H-O gauge toy railroad whose tracks measure inch between rail centers in the two-rail type of track here il-` lustrated. It is therefore apparent that in the interior of such very small toy cars or single units of toy rolling stock, such as the tender I3, very little space isvavailable to contain apparatus capable of successfully producing sound and smoke effects. This stringent space restriction has heretofore necessitated a distribution of the sound and smoke producing apparatus between more than one piece of the toy rolling stock, such as between the locomotive and its tender.

I have devised an organization of the essential components of a sound 'and smoke producing apparatus which enables them, together with an electric power motor by which they are operated, to be contained within as small a space as iesquare inch by 3%" long. This enables them all to be housed within the style and size of tender that is conventional in H-O gauge trains.

'For the 'purpose of constructing the jointly operative sound and smoke apparatus as a subassembly unit that can be built complete as such, and tested in fully operative form before being installed in the car of a toy train, all parts of such unit are mounted preferably on a common base plate I5 which comprises a rigid die casting that may be secured removably to the chassis IB of tender I3 by holding screws I1 in a position accurately determined by downward projecting dowels I8 cast on the baseV plate I5 and tting holes or sockets in the tender chassis. Y Y

. Base plate I5 has cast integrally therewith-an upstanding wall 22 having laterally projecting cast bosses 23 against which is mounted the D- type laminated stator 2.4 of motor I4 carrying the field winding 25. This stator is secured against frame bosses 23 by long holding screws 26 having threaded engagement with the boss 23 and passing through the stator as well as through a bearing plate 23 of insulative material and through tubular spacers 21 holding thelatter n rigid relation to the stator.

Embedded in insulative plate 28 there is a metallic bushing that affords bearing for one end of the motor armature shaft 32 whose opposite end has a bearing 29 in the frame wall 22 and terminates outside'of this frame wall in a worm 33. The motor shaft 32 carries a three-pole armature having respectively three electric windings 35. It also xedly carries the commutator 35 whose radial face is contacted by brushes 31 resiliently .pressed toward said commutator face and fed with electric current by the conductive leaf springs 38 that are mounted in insulated relation on bearing plate 28, there being two brushes 31 on diametrically opposite sides of armature shaft 32.

Thus motor I4 through its shaft worm 33 is constantly in mesh with and able to rotate a worm gear 39 which is pivotally mounted to turn about a vertical axis on the top of a stationary bearing post @Il which post may be cast integrally with base plate I5 or mounted fixedly thereon. Worm gear 39 is retained by a shoulder screw 4I which serves as its pivotal bearing. Worm gear 33 carries a crank pin 12 herein shown as a removable screw stud having threaded engagement therewith. Altogether the foregoing parts constitute a speed reduction gear serving as power transmitting mechanism.

There will next be described the compact organization of a unified sound and fume producer which I have devised in a form susceptible of being contained in the small remaining space measuring square by long. The problem of so doing can not be met merely by making formerly proposed forms of apparatus smaller because to do so would reduce to an unsatisfactory degree the volume of air capable of being pumped for producing the desired smoke and sound effects.

I have combined a resonance box or sound chamber 45, a smoke storing compartment 46 and a liquid containing rellable magazine 41 in an integral hollow casting forming a box-like enclosure separate from base casting I5 and indicated as a whole by the numeral 49. This casting has side walls 55, an end wall 5I comprising external walls, a vertical partition wall 52 and a horizontal partition wall 53. The shape of this casting leaves compartments 45, 46 and 41'only partially housed by walls 5I, 52 and 53. compartments, so far as, casting 49 alone ris concerned, remain open at the bottom or at the top. In assembly, however, the open bottoms of sound chamber "l5 and magazine 41 are leak-proof because closed liquid tight by the mounting of casting d on base plate I5 with an intervening, jointsealing gasket 511. Casting 9 is vheld byfour fastening screws 55 having threaded engagement with internal bosses on walls 5I and '52 andl passing through clearance holes in base' plate I5.

The open tops of sound chamber 45 and compartment are completely sealed liquid tight by a cover plate 56 of insulating material secured against the top of casting 4S by four holding screws 51 having threaded engagement with internal bosses on walls 5I and 52. Y

As best shown in Fig. 4 the side walls 50 of casting 49 are provided with vertically. extending These chamber "45;

longitudinally gfveer bs'ffsi animieren-nie lateral edges of sounderfplate 6'3 so that thisplateV` can' "-bev removedA from casting '49 by. sliding'it edgewise out oi'vvthefgroovesv in ribs 62 when cover plate 56Vv is removed from'casting-ES. With the exceptionof an aperture 1in plate vB3 the plate forms a pneumatically sealed' c losun'aY for sound rIYhis chamber `nevertheless fhasav fluid communication with the smoke measure Vof storing compartment `or reservoir -llthrough a tiny-opening 65-A in 'partition lWall 15,2'1thatlenablespulsations of air pressure-'infsoundichambenll to be transmitted to''thesmollie-reservoir1%. It si's newy with this invention# tov dof'awaywithl th'e'use (r-connecting tubing for affording such luidcome" munieation. Aperture e4fisflippdfatfe to causel soundjproducing diversion oi?l ajet of ain 69 impulsedY y best shown in Figs.Y 4, v5 and '7. 'l

' Bellows 10 Aconstitute areciprocative -pump 'or pneumaticblower and isl ofthe box type -familiar in accordion andlike constructionsspeciallyk by-`bellows through a jet oriii'ce' lll, as"v adapted for thefpresentjuse -to aiorda maxfiiriun'fivv easel and capacity of voluminous air displacement by vthe slight amount of bellows'niovement thatv can be accommodated v`withinthe' small" confines ofcubical space here available,-i It'fwill be lunderstoodhowever Ithat' where space permits, itis within the scope oitliis inventirijtosubstitute aj fan'typ'e of 'bellows-or any other form `of air pump-that proves capable of jsufcient'volume" of `air displacement for the; purposes desired. LI' have discovered that a-box type of bellowsfnot only displace's'moreair per linear extent of movement ythan does 1a `fan type" vorl'iingedtype" of f'bely lowsA butatto'rds amoreabrlipt 'eiect onfthe air when it starts to expel same.- Thisis' important' for yproducing the kind of aerodynamic eiect'best4 suited tov realistically imitating Athe puiiing sounds and fume vbehavior of steamengine exhaust`r action-; j j Y 1 A "Bellows 1U comprisesa stiff stationary anchor plate 12 and ay stiff-head platen thatlrecipro-k cates broadside; fMovable plate '|13 isv connected to stationary plate 12 by -a fldably- "eollap'sibleVA tubularvvvall 14. For minimum'resistancein theV bellows action I have fnindmit;-advantageoustoY make theflexible bellows wallsi'Mfofn Veryjtlii'n rubberized fabricsuch as the material 'commercially' known asTerson bellows* clotlior-'VinyliteA coate'don a base of HH balloon cloths. Fabric f1t-` has Vits tubular end margins cemented in air tight' felation to Vthe ,peripneryloffpiaies L12 and V1-3 and is'creased symmetrically to determineits lines of flexure a'splate '13 approaches and recedes from the plate 12.

The stationary or ,anchored bellows vplate '1251sY iixedly mounted against vtheupriglfi't surfaceof'- a support apron 15 that forms-a part l:of castingv E9, by a removablev fastening 'bolt 16v havin g vnthreaded-engagement with plateflz. 'Bolt 'lco'ntains the jet oricell extending entirelytherethrough and 'giving the interiorof bellowsl'l'nuid communication with- "thesp'ace 6B between apron 'lfand sounder plate S3 which spacey opens lfreely to ambient air both'at its 'lower sides vand throughv anord the pneumatic 'eiiciency 'orfst'raig'htaway direction of airflow through the jet orifice ll,v sound aperture" till`V andv smoke impulsing opening 155A are `coaxial andc'omprisje- :short passagewaysv@aimeealsouneeiiafntf sazia-@mere'resserre ons# Y' The y:mex/able hadgpnre 1s or thebeuowsihs fixed thereon by rivetsfvl 9 Aan-actuating 'projection I in the form ofV bar 8'0 'containingl in itsfvfreerendv f a transverse elongated slot 81 "that vis pivotally and slidably engaged vby the aforesaidff'crankpin I 42 'that revolves withlworm gear 39. This v'causes' the bellows head plate 13 to be reciprocated vto- Ward and away from the stationary.bellowsplater 12. The elongation o'fslot' I `increases the pausel of kvbellows headV 13 when positioned 1as"-in Fig-.'- 3' between each reversal -of 1 its ireciproca'tive move# ments; and reduces vlthe degree oiannular lincllj-f nation to which head 13' is frcedin relationhead12f`when crank l-pi-ri 4occupies-its positioni.

shown in? dash linesin Fig; v4,

' A`In muchfthe-samefwayas in myfcop'ending Japl-f plications hereinbefore referred to; smokeisj'genf-{ferated in the ksuperinfiposed compartment-lift byf the electrical heating and vapo'rizati'cin-v of aire-1 plenishable supply of liquid thatfis convertible into Vfumes and derived from ythe underlying storage compartment 4or magazine 51. 'l'hiusi` fumev source liquid, Vusually of oily nature. 'is

absorbed'and ledupward by capillary attraction from; magazineV el through afloop of 'flbrousj wicking-82`f best shown inFigs. 5 and 6. This;A wicking lls andpasses through tight ntting holes; in bosses 83 which serve to thicken thefhorizonf-v tal-partition'wall 53, at all other points serving I and to isolatejit` from Ythe smoke reservoir 46'. This''cor istitnilg'es'-` means to feed the'fume source liquid or substance?.

to sealmagazine 4l liquid tight automatically from-compartment 41 'to compartment'ei. `A fine electrical resistance wire 84 is' close-wound 'tightly about wa horizontal stretch -ofj thewicking liz'incompartment'd'and is anchoredr by'being embedded-in a soldercore 88 filling the interior of eyelets Sain the cover plate 55.l Ref" sistancefwire'd 'extends through this solder'jcore anais' soldered-to binding 'posts ce and '81 rast# enedfa'gainst'the outer surface of cover l.plate "55 bythe heads or, eyelets 85. This 'constitutes Vmeans Yto'vaporizeithe fume source liquid'inf com'- partment 4B;

' Theiower free ends en ofgwiei'zing s2 ihrermingle in jumbled relation at the bottom of lijquidf magazine Min ,a ymanner vefii'cient'lly-,to absorb and soakjup from any portion of` the'` magazine interior v'vhatever content of 'vaporiz'abljliguid there may be in themagazine. ThisV supplyoi" liquid is replenishable through a 'fillerv openingr in coupling s 1 which 'mayv comprise a tubular stud threadinginto the end *irallv 5| of fcastingjd and 1 having an intake or filler passagewayjgd through it that 'is plugged at the outerV or ller end byal removable-screw 92that threads finto coupling 9 I 'and prevents leakage of liquid because, sealed bya gasket Washer rv93. Filler passage 94 isY structurally'isolated from compartment 46. Outlet for smoke ejected from compartmentil is through apnipple 95 threaded into thejend wall 5l of casting/49 and on the-outwardly projecting end of which `is sleeved the Vdetachable endfofa" rubber tube vSlewlciich leads toand gives upward throughthe imitative smoke-stack 91 oiV locoml tive l2. f

Base I5of this 'unitary-princi is removablyat l Y taehedto the chassis "I6 o f the tenderl'S, 'ont-*Q the inside ci any other vhollow Vtoy such as the toy locomotive I2 or a stationary 'toy' tra'ckside logging "mill, by screws Ilf'whose location and arrangenient'4 are shown/by broken linesv inr'lgs.V Zfand 3.A yThes'eil'gures oithedrawingsalso showv the"locationjorrftheI :nit lbaseyl offa manually, operablefelectricswitcli'iidiatediasea l'varioleffby' 'f heating coil 84 in an arrangement of circuit con-- nections diagrammedin Fig. 10. The diagram of Fig. 10, in conjunction with the cut-away view of the current collecting structure of one of the toy cartrucks in Fig. 9, makes clear that each truck is equipped with insulative wheels |I that roll on one of the two metallic track rails |02, |04 and with metallicwheels |03 which roll conductively on the other of said track rails. Since the conductive wheels of the two trucks run o nl respectively different track rails,l as is represented in Fig. l10, electric current supplied through either of track rails |02 or |04 is returned to the other of these track rails through a split electricvcircuit containing in one branch the motor I4 and in the other branch the heating coil 84. Current is collected from rail |02 by wheels |03 and passes through the wheel axles |05, brush plate |06,

brush spring |01, and truck pivot stud |08 to the switch |00 and thence divides between motor I4 and heating coil 84 and returns to track rail |04 through the pivot stud |08, brush spring |01, brush plate |06, axles and conductive wheels |03 of the other truck. Thus both the motor'and the heating coil-derive their energizing current from track rails |02, |04.

The detailed construction of switch|00 appears more clearly in Figs. l2 and y13 wherein the casting of 1mi-t base |5'is shown to be hollowed upward at |00 aording cavities that make room for the connection of conductive wiresrespectively to a stationary switch contact ||0 and to the pivot ||2 of a swingable conductive switch contact arm ||3 whose handle end-H4 projects tothe outside of tender|3 sutciently to be manuallyaccessible. The side edges of a notch II5 afford stops in either direction for the swinging movement of switch arm I3. Switch |00-is shown in circuit-making position by full linesiri Fig. l2

wherein the broken lines indicate circuit-break ingposition of this switch. Theztender chassis I0 is topped by the usual removable-casing H6.

secured by screws ||1 and contouredexternally to 'imitate in miniature a load oi coal piled up in the bin vof the tender.

. Fig. 11 shows a modification of the ller fitting 9|.wherein the sealing of liquid in them'agazine or storage compartment 41 is eiected hydraulically by trapping it rather than by means of plugscrew 92 and gasket 03. A nipple ||8 which may be similar to nipple 95,-is sleeved by the. end of a iiexible tube ||9 whoseother end is correspondingly sleeved over the interior end of atubular the storage chamber even when the latter is completely full. It has been mentioned hereinbefore that a cover wall I2 penetrated by inlet |20 might constitute the top wall of a locomotive I2 y as in Fig.Y 16 or some other piece of toy train rolling stock, or-might constitute the roof of a miniature toy building such as a trackside logging mill.

In Figs. 12, 14 and 16 an equivalent for iller inlet I 20 is shownmto consist of an internal boss |29 on -wall 5|of box-castingh49" containinga verticalV intake or fllerrpassage |30.. -In the ena larged'top portion of passage |30 there is inserted a permanent filler funnel I3I which like inlet |20 may be plugged at its internally threaded top end by a removable-thumb screw like |26. Fig. 14 shows the position that funnel I3 I may assume in relation to the top wall |2| of tender casing I6.

Figs. 14 and 15 illustrate an economical, clean and'convenientthrow-away dispensing package in which charges ofY liquid may be merchandised for replenishing magazine 41. |36 is a gelatin capsulelledwith the liquid |38and whose walls are contoured to'form an elongated dispensing nipple |31-which maybe externally threaded to screw into, or may merely be looselyinserted in, ller funnels |3| of Fig.` 174 or |3I of Fig. 16 hereinafter described. In the Vform vmerchandised, the tip endA of the nipple |31A is sealed-by continuity of the gelatin wall of the capsule as shown in Fig. 15. Because of the softness of theA capsule wall the tip end of nipple |31 can be nipped ofi by the thumb nail of a persons hand and the passageway through the spout is so small inv cross section in proportion to its length that the liquid contents of the capsule will not run out even if the open tip of the nipple is turned downward inasmuch as `air cannot enter upward against the weight of the liquid that fillsthe nipple. However the capsule, having ilexible walls, can be squeezed as shown in Fig. 14 as one would squeeze the sides of an oil can and this causes the liquid contents of the capsuleto be discharged into the ller vfunnel .with dispatch and in a clean way which avoids spilling or daubingof any of the oily liquid over external surfaces of the toy. When. the tip of nipple |31 isv externally threaded to screw` into .the internal threads of funnel |3| -or- |3I' with a-liquid tight t before the capsule is squeezed,tliis form of refueling apparatus is absolutely spill proof..

Fig. 16 shows one of many possible structural arrangements whereby'the smoke-like fumes that are discharged from reservoir 46 maybe led preferably laterally into the upper open end portion of a modified nller funnel I3 The flexible conduit 96 from nipple 95 is sleeved over a branch nipple |40 that communicates with the vertical passageway through the modied funnel |3I. Thus this funnel serves the combined function oi. fillerinlet and smoke outlet enabling the liquid magazine 41to be iilled through the smoke stack- 01 of locomotive I2 if the entire puffing unitl is transferred from tender I3 to the hollow interior of locomotive I2 in such position that funnel ISI takes the place of smoke stack 91., -The broken lines |3I in Fig. 16 indicate an upward lengthening of stack ISI which will make it more realistic in imitating the appearance of a power plant smoke stack when projecting above the roof of a toy mill, factory or steam power plant in which myimproved pufiing unit may be installed. Also in the funnel or stack I3I' of Fig. 16, the smaller bottom portion |4| of the passage may be threaded to receive the slender shankedscrew |62 which has a long enough threaded bottom plug` end to cause its top slotted end to protrudeaccessibly from stack|3| when it is sufliciently unscrewed. The presence ofV stopper screw |42 prevents leakage of liquid fuel |38 outfof magazine 41 in case the locomotive vshould overturn but in 'no way interferes with -the discharge of the smoke-like, engine puling fumes out of locomotive stack |3I or |3I. Intake or ller passage|30 in Fig. 16

exteis ,downward gaat. the compartment vlsf @1.131.

on said chassis cooperatively associated with said fume source in a manner to cause puffs of fumes derived therefrom tol depart from said unit of rolling stock, a producer of pseudo steam puing sounds carried on said chassis including a pneumatic blower, an electric motor carried on said chassis deriving current from said track rails, and mechanical connections enabling said motor to operate said` blower, said sound producer comprising a rigid box-like structure, and said pneumatic blower comprising an accordion type of bellows having one of its ends iixed externally on said box-like structure and its other end impellably related to said mechanical connections.

11. A single unit of toy rolling stock equipped to run on electrified toy track rails, incorporating in combination with a unitary rigid wheeled chassis, a source of smoke-like fumes carried on said chassis, a fume impulsing apparatus. carried on said chassis cooperatively associated with said fume source in a manner to cause puffs of fumes derived therefrom to depart from said unit of rolling stock, a producer of pseudo steam puiing sounds carried on said chassis including a pneumatic blower, an electric motor carried on said chassis deriving current from said track rails, and mechanical connections enabling said motor to operate said blower, said sound producer comprising a rigid box-like structure, and said, pneumatic blower comprising an accordion type of bellows having one of its ends fixed externally on said box-like structure, and said mechanical connections including a speed reduction gear driven by said motor and a power transmitting mechanism constructed and arranged to enable said gear to irnpel the other end of said bellows in both of opposite directions.

12, Avsingle unit of toy rolling stock equipped to run on electried toy track rails, incorporating in combination with a unitary rigid wheeled chassis, a source of smoke-like fumes carried on said chassis, a fume impulsing apparatus carried on said chassis cooperatively associated with said fume source in a manner to cause puffs of fumes derived therefrom to depart from said unit of rolling stock, a producer of pseudo steam puning sounds carried on said chassis including a pneumatic blower, an electric motor carried on said chassis deriving current from said track rails, and mechanical connections enabling said motor to operate said blower, said sound producer comprising a rigid `box-like structure, and said pneumatic blower comprising an accordion type of bellows having one of its ends iixed externally on said box-like structure, and said mechanicalconnections including a worm driven by said motor, a Worm wheel driven bysaid worm, a crank pin revolved by said worm wheel, and an actuating projection on the other end of said bellows engaged by saidcrank pin in a manner to be impelled in both of opposite directions by revolving movement of the latter.

13. A single unit of toy rolling stock equipped to run on electried toy track rails, incorporating in combination with a unitary rigid wheeled chassis, a source of smoke-like fumes carried on said chassis, a fume impulsing apparatus carried on said chassis cooperatively associated with said fume source in a manner to cause puffs of fumes derived therefrom to depart from said unit of rolling stock, a producer of pseudo steam pulling sounds carried on said chassis including a pneul2 matic blower, an electric motor carried on said chassis deriving current from said track rails, and mechanical connections enabling said motor tol operate said blower, said sound producer comprising a rigid box-like structure, and said pneumatic blower comprising an accordion type of bellows having one of its ends fixed externally on said box-like structure, and said mechanical connections includinga worm driven by said motor, a worm wheel driven by said worm, a crank pin revolved by said worm wheel, and an actuating projection on the other end of said bellows having an elongated slot pivotally and slidably engaged by said crank pin in a manner to cause said other end of the bellows to be impelled in both of opposite directions by revolving movement of saidcrank pin with a pause at each reversal of the responsive bellows movement.

14. Toy refueling apparatus for replenishing a liquid consuming pseudo-steam puing unit for toys, comprising in combination with a magazine within the toy for storing a fume source liquid. a filler opening in the toy affording entrance of said liquid to said magazine, and a sealed capsule containing a charge of said liquid, said capsule being separable from the toy and having walls contoured to form a nipple having a tip closed by the material of said walls, said walls of the capsule being sufliciently flexible to yield inward .to squeezing pressure of the operators fingers and soft enough to enable said closed tip of the nipple to be nipped off by pressure of the operators thumbnail thereby to alord outlet for said liquid through said nipple when the latter is applied to said iiller opening in the toy.

15. Spill-proof toy refueling apparatus as deiined in claim 14, in which the said ller opening is internally screw threaded and the said nipple is externally screw threaded in a manner to be screwed into said threaded lling opening with a liquid tight screw lt.

16. A single unit of miniature toy rolling stock equipped to run on and collect current from electriiied toy track rails, incorporating -a narrow elongated rigid wheeled chassis, said chassis carrying a pseudo steam punng unit comprising in straight alignment lengthwise of said chassis and in cooperative combination, a source of smokelike fumes, a producer of imitative steam puffing sounds, a single reciprocative pump all in mutual fluid communication through coaxial passageways, and an electric motor powered from said track rails and connected to operate said pump.

17. A single unit of miniature toy rolling Vstock as defined in claim 16, together with an integral casting housing the said source of rsmoke-like fumes and the said producer of steam puiiing sounds.

WILLIAM R. SMITH.

REFERENCES CITED The following references are of record inthe le of this patent:

UNITED STATES PATENTS Number Name Date 1,273,478 Goodwin July 23, 1918i 1,287,767 Schanschiefl Dec. 17, 1918 2,279,113 Dudek Apr. 7, 1942 2,317,974 Bastiansen May 4, 1943 2,461,664 Smith Feb. 15, 1949 2,520,916 Dasenbrock Sept. 5, 1950 

